The cubic metre (symbol m³) is the SI derived unit of volume. It is the volume of a cube with edges one metre in length. Older, now unofficial, equivalents were the stere and the kilolitre.

1 cubic metre is equal to:

• 1,000 litres
• 1,000 cubic decimetres
• 1,000,000 cubic centimetres
• 35.3 cubic feet
• 1.31 cubic yards
• 6.29 oil barrels

A cubic metre of pure water at a temperature of 3.98 °C (degrees Celsius) and standard atmospheric pressure has a mass of 999.972 kg (one tonne)

cubic decimetre << cubic metre << cubic kilometre

See also

• 1 E0 m³ for a comparison with other volumes, also orders of magnitude